同向双螺杆单头螺纹元件螺棱宽度变化对螺杆运行的影响  

Influence of the variation of the screw edge width of the co-rotating twin-screw single head threaded element on the operation of the screw

作　　者：王禄 刘鑫传 王小平 苗泽宝 Wang Lu;Liu Xinchuan;Wang Xiaoping;Miao Zebao(Dalian Rubber&Plastics Machinery Co.LTD.,Dalian 116039,Liaoning,China;CHN Energy Ningxia Coal Industry Co.LTD.Olefin Branch 1,Yinchuan 750409,Ningxia,China)

机构地区：[1]大连橡胶塑料机械有限公司,辽宁大连116039 [2]国家能源集团宁夏煤业有限责任公司烯烃一分公司,宁夏银川750409

出　　处：《橡塑技术与装备》2024年第9期15-20,共6页China Rubber/Plastics Technology and Equipment

摘　　要：同向双螺杆挤出机作为塑料挤出加工的常用设备,在如今塑料行业迅猛发展的推动下,其产量、扭矩和转速大幅度提高,应用日益广泛。提高同向双螺杆挤出机生产效率、改善产品质量和实现设备的多功能化是实现其高性能化的基本要求,也是研发的难点所在。改变螺纹元件的构型也是一个重要的因素。同向双螺杆的大导程单头螺纹元件往往被应用在螺杆头位置,有着辅助支撑及输送等作用。文中所述通过改变同向双螺杆的单头螺纹元件螺棱宽度研究其对物料的填充度和压力分布、螺杆受力、螺杆混炼能力的影响。通过分析结果表明随着螺棱宽度加大,螺杆的填充度降低,混炼能力提高。As a commonly used equipment for plastic extrusion processing,the co-rotating twin-screw extruder has seen a significant increase in output,torque,and speed driven by the rapid development of the plastic industry,and its application is becoming increasingly widespread.Improving the production efficiency of co rotating twin-screw extruders,enhancing product quality,and achieving equipment multifunctionality are the basic requirements for achieving their high performance,as well as the difficulties in research and development.Changing the configuration of threaded components is also an important factor.The large lead single head threaded component of co rotating twin-screw is often applied at the screw head position,which has auxiliary support and conveying functions.This article studies the effects of changing the rib width of co rotating twin-screw on the filling degree and pressure distribution of materials,screw force,and screw mixing ability.The analysis results show that as the width of the screw edge increases,the filling degree of the screw decreases and the mixing ability improves.

关 键 词：单头螺纹元件 螺棱宽度 混炼能力 压力分布 受力 

分 类 号：TQ320.671[化学工程—合成树脂塑料工业]